Body and truck bolster and method of making the same.



No. 825,025. PATENTED JULY 3, 1906. E. I. DODDS.

BODY AND TRUCK BOLSTER AND METHOD OF MAKING THE SAME. APPLIOATION FILED JULY 31, 1905.

3 SHEETS-SHEET 1.

PA TENTED JULY 3, 1906. E. I. DODDS. BODY AND TRUCK BOLSTER AND METHOD OF MAKING THE SAME.

APPLICATION FILED JULY 31, 1905.

a SfiEETS-SHEET 2.

|||| VIII l *APII llihni \l I. IIIILIrI Illllll II! 4 PATENTED JULY 3, 1906. E. I. DODDS. BODY AND T-RUGK BOLSTER AND METHOD OF MAKING THE SAME.

APPLICATION FILED JULY31, 1905.

3 SHEETSSH EBT 3.

UNITED STATES PATEXT OFFICE.

ETHAN I. DODDS, OF PULLMAN, ILLINOIS, ASSIGNOR TO THE PULLMAN COAlPaNY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BODY AND T RUCK BOLSTER AND METHOD OF MAKING THE SAME.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed July 31, 1905. Serial No. 272.047.

To all whom/it may concern.-

Be it known that I, ETHAN I. Donns, a citizen of the United States, residing at Pullman, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Body and Truck Bolsters and Methods of Makin the Same, of which the following is a speciflcation.

In order to make a body or truck bolster which shall combine ease of handling and economy in its manufacture, great strength, and uniform thickness of metalthroughout, I have devised the structure described in this specification and illustrated on the accompanying drawings. From a metal plate of the proper dimensions are cut out four pieces from the ends of the sheettoward the central portion, but not reaching that. part. The longitudinal edges of the sheet are then turned over, so as to form outwardly-extending flanges when the sides are bent up-.

Ward. Flanges are also turned over at one side of each recess formed b 1 the cutting, and then by turning up the si e portions and riveting the flanges at the side of each recess to the bottom of the bolster, the latter being bent to proper shape, I form a structure of great strength and one which can be madewith the metal hot or cold, but preferably cold. The operations of bending the parts of the sheet into shape may be performed successively or simultaneously; but I prefer the. latter method, employing dies for that purpose.

I have illustrated one-embodiment of my invention in the accompanying drawings, wherein Figure 1 shows a perspective view of the truck-bolster. Fig. 2 shows a vertical longitudinal section of both the-body and truck bolsters Fig. 3 is the end,view of both bolsters. Fig. 4 is a cross-section of both bolsters on the line 4 4 of Fig. 2. Fig. 5 shows the blank from which, the bodybolster is made, and Fig. 6 shows a similar blank from which the truck-bolster is made.

Referring first to Fig. 5, a rectangular sheet of metal 10' is sheared at each end by two parallel cuts on the lines 13 from the ends toward the central art of the sheet. Four pieces of metal are t en cut out, mak ing four cuts on lines 11, parallel for a portion of their length to the first-mentioned cuts and then inclined to and intersecting the first cuts at the points 12 some distance from their inner ends. This operation produces four spaces or recesses in the metal of the shape shown in Fig. 5. The two opposite longitudinal edges of the sheet are then turned down on the lines 14 14, so as to form outwardlyextending flanges when the sides are turned upwardly. I also bend up on a line 15 the outer edge 'of the metal bounding each recess, so as toform additional flanges 20. By bending upwardly the two outer longitudinal parts of the metal sheet on the lines 16 16 there are formed the two bellied side plate portions 20 of the'bolster. The central strip of the sheet which is to form the bottom plate 21 of the bolster is bent on the transverse lines 17 and '18, so that said bottom will be in contact with the flanges 20 of the side plates.' These operations may be performed at the same time or separately, as desired. Afte'r the bolster has been bent to shape, as described above, the bottom is riveted to the lower flanges of the sides, and to the top flanges is secured a connecting-plate 22. Although I have shown these upper flan es of the bodybolster extending the full Iength of the sides, it is evident they may be made shorter, if found desirable.

The truck-bolster is made in the same manner as described above, but a. smaller and slightly-modified form of blank is used,

as shown in-Fig. 6, and it is to be noted that the outwardly-turned upper flanges 21" do not extend the full length of the bolster, a shorter upper connecting-plate 22 being used therewith. I

Asa spacin means or fillers for the truckbolster I empI cast-metal parts 23, which are fastened to the sides of the bolster by the .rivets 24 and to the bottom of the bolster by rivets 25, whic pass not only through the bottom, but also through the inturned flan es 20. To the bottom of the body-bolster I secure the center bearing-plate 26, and to the top of the truck-bolster I rivet the cooperating center bearing-plate 27. As spacing means for the ends 01 the body-bolster I use the oy dish-shaped sheet-metal or i ITO as is shown, for example, in Fig. 3, a part of the rivets which fasten the member 28 to the bottom passing also through the inturned side flanges.

Obviously a bolster might be made without actually cutting out pieces at the ends of the sheet, since the mere slitting of the metal on the lines 13would allow the flanges to be turned and the parts to be formed into shape.

It is evident I have described a method of manufacturing both body and truck bolsters which has numerous advantages over proc= esses now .in use. Istart with a plain rectangular sheet of metal, and with comparatively little cutting and waste of material the sheet is in condition to be pressed into shape. Since all the bending operations can be executed simultaneously, the time occupied in making the bolster is reduced to a minimum, and inasmuch as such a sheet can be worked into form while cold it can be easily handled and there is no expense involved forfuel to heat the sheet.

' Among other features of value inherent in a bolster produced by my method may be mentioned the great strength of the structure and the uniform thickness of the metal throughout, due to the fact that all the operations involve mere bending without any stretching or straining of the metal.

Various modifications may be made in the details of the bolster embodying this invent on without departing from the substance of the invention as defined by the appended claims.

This patent is intended to embrace only so much of the disclosure made herein as is cov'- ered by the claims.

I claim- 1. The method of making a car-bolster, which consists in shearing a sheet of metal with two longitudinal cuts extending inwardly from each end, bending over a flange at one side of each cut, folding'up the outer longitudinal portions of the sheet to form the sides of the bolster, bending up the ends of the central longitudinal portion of the sheet to form the bottom of the bolster, and fastening the sides and bottom together by means of said flanges and rivets, substantially as described 2. The method of making a car-bolster, which consists in shearing a sheet of metal with two longitudinal outs extending inwardly from each end, turning-over flanges at the outer longitudinal edges of the sheet, bending over aflange at one sideofea'ch out, folding up the outer longitudinalportions of the sheet to form the sides of the bolster,

bending up the ends of the central longitudinal portion of the sheet to form the bottom of the bolster, and fastening the sides and bottom together by means of the flanges bent over atone side of each cut and rivets, substantially as described 3. The method of making a car-bolster,

.which consists in cutting out of a sheet of metal two pieces at each end forming recesses, turning over a flange at the outer side of each recess, bending up the outer longitudinal portions of the sheet to form the sides of the bolster, bending up the ends of the central longitudinal portion of the sheet to meet the flanges and form the bottom of the bolster, and riveting the bottom to said flanges, substantially as described,

4. The method of making a car-bolster, which consists in cutting out of a'sheet of metal two pieces at each end forming recesses, folding over flanges on the lon itudinal edges of the sheet to form upper flanges when the sides are bent to place, turning over aflange at the outer side of each recess to form lower flanges for the sides, bending up the outer longitudinal portions of the sheet to form the sides of the bolster, bending up the ends of the central longitudinal portion of the sheet to meet said lower flanges and form the bottom ot the bolster, and riveting the bot-tom to said flanges, substantially as described.

5. The method of making a car-bolster, which consists in cutting out of a sheet of metal two tapering pieces at eachend forming recesses, turning over a flange at the outer side of each recess, bending up the outer longitudinal portions of the sheet to form the sides of the bolster, bending up'the ends of the central longitudinal portion of the sheet to meet-the flanges and form the bottom of the bolster, and riveting the bot tom to said flanges, substantially as described.

6. The method of making a car-bolster,

which'consists in cutting out of a sheet of metal two pieces at each end formlng recesses, said pieces having-edges parallelfor a portion of their length, and for the remainder jof the sheet to meet said flanges and form the bottom of the bolster, and riveting the bottom to said flanges, substantially as described. 7. The method of making a car-bolster, which consists in cutting out of a sheet of metal twotape'ring pieces at each end form ,ing recesses, foldingiiver flanges along the longitudinal edges (if the sheetlto form outwardly-extending flanges when the sides are bent to place, t'urmng over a flange at the outer side of each recess to form lower flanges for the sides, bending up the outer long'itudinal portions of the sheet to form the sides of the bolster, turning up the ends of the central longitudinal portion of the sheet; to

meet said lower flanges and form the bottom of the bolster, and riveting the bottom to said flanges, substantially as described.

8. The method of making a car-bolster, which consists in shearin a metal sheet with two parallelcuts eXten in from each end toward the central part of t e sheet, cutting out four pieces of metal thus forming recessesby making four cuts parallel for a portion of their length to the first-mentioned cuts and then inclined to and meeting the first cuts some distance from their inner ends, bending over a flange at the outer side of each recess, turning up the outer longitudinal portions of the sheet to form' the sides of the bolster, folding the ends of the central longitudinal portion of the sheet to meet the flanges on the side portions and form the bottom of the bolster, and riveting the bottom to said flanges, substantially as described.

9. A car-bolster having side plates, and a bottom plate inte ral with said side plates for a portion of its length and fastened to said ,side plates for another portion of its length,

substantially as described.

10. A car-bolster having side plates, and a bottom plate integral with said side plates at the central portion of its length and fastened to said side plates for the remainin portion of its length, substantially as descri ed.

1 1. A car-bolster, havin side plates, each with an outwardly-extent ing flange at its upper edge, and inwardly-extending flanges a ong portions of its lower edge, and a bottom plate integral with the sides for a portion of its length and riveted to the lower flanges.

of the side plates, substantially as described.

12. A c'arbolster, having side plates with inwardly-extending flanges along portions of their lower edges, and a bottom plate intel gral with the sides for a portion of its length,

and riveted to the lower flanges of the side plates, substantially as described.

13. A car-bolster having side plates, each with a flange along a portion of its lower edge, and a bottom plate integral with said side plates for a portion of its length and riveted to said flanges, substantially as described.

14. In a carbolster, the combination of side plates each having an outwardly-extending flange at its up er edge, and an inwardlyextending flange a ong a portion of its lower edge, a bottom plate for a portion of its length and riveted. to the lower flanges of the sideplates, and a top late riveted to the upper outwardly-extendmg flanges of the side plates, substantially as described.

' 15. A car-bolster, having bellied side plates, each with inwardly-extending flanges along ortions of its lower edge, and a bottom p ate integral with the sides for a por tion of its length, and riveted to the lower flanges of the side plates, substantially as described.

16. In a car-bolster, the combination of bellied side plates, each with an outwardlyextending flange at its upper edge, and inwardly-extending flanges along portions of its lower edge, a bottom plate integral with the sides at their central bellied portions and riveted to the lower flanges of the side plates, and a top plate riveted to the upper outwanlly-extending flanges of the side plates, substantially as described.

ETHAN I. DODDS.

Witnesses:

FREDERICK (l. Goonwm, VVALTER M. FULLER.

integral with the sides 

